package com.atguigu.gulimall.product.exception;

import com.atguigu.common.exception.BizCodeEnum;
import com.atguigu.common.utils.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.util.HashMap;
import java.util.Map;

/**
 * 集中处理所有异常
 */
//@ResponseBody
//@ControllerAdvice(basePackages = "com.atguigu.gulimall.product.controller")

@Slf4j
@RestControllerAdvice(basePackages = "com.atguigu.gulimall.product.controller")
public class ExceptionControllerAdvice {

    @ExceptionHandler(MethodArgumentNotValidException.class)
    public R handleMethodArgumentNotValidException(MethodArgumentNotValidException e){
        BindingResult result = e.getBindingResult();
        if(result.hasErrors()){
            Map<String,String> map = new HashMap<>();
            result.getFieldErrors().forEach((item) ->{
                map.put(item.getField(),item.getDefaultMessage());
            });
            return R.error(BizCodeEnum.VALID_EXCEPTION.getCode(),BizCodeEnum.VALID_EXCEPTION.getMsg()).put("data",map);
        }

        return R.error(BizCodeEnum.UNKNOWN_EXCEPTION.getCode(),BizCodeEnum.UNKNOWN_EXCEPTION.getMsg());
    }

    @ExceptionHandler(value = Throwable.class)
    public R handleException(Throwable throwable){
        log.error("收到异常： {},异常类型： {}",throwable.getMessage(),throwable.getClass());
        return R.error(BizCodeEnum.UNKNOWN_EXCEPTION.getCode(),BizCodeEnum.UNKNOWN_EXCEPTION.getMsg());
    }
}
